I have also shot my GL a great deal with no issues except that it should never have been chambered for 3" magnums. A turd it isn't.
However, I don't think it is a gun that was ever intended to be fancied up like that one--one of those is quite enough.
The contempt for "castings" bothers me. Injection casting has paid its dues many times over. Even in this forum's rarified atmosphere I find it surprising that anyone spurns that technology at this late date. It doesn't make "best guns." But it makes some very good guns accessible to all.
